Bio 100 Exam 1||Verified Exam with Correct Answers
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How is discovery-based science different from hypothesis-
driven science? - Answers-Discovery Based science- has
the goal of finding new information and serves to form new
hypotheses. Hypothesis Driven science- uses deduction
and the scientific method.
What are the steps of the Scientific Method? - Answers-1.
Do an observation
2. Ask a question
3. Construct a hypothesis
4. Make a prediction
5. Test the experiment
6. Analyze the results
7. Draw a conclusion
Remember: A hypothesis is an educated guess to your
question, must be testable, and can never be proven!
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Are large or small sample sizes more accurate for
scientific studies? - Answers-Large sample sizes are more
accurate for scientific studies because it increase the
chance of finding a significant difference and leads to a
more precise data.
What is the difference between a hypothesis and a
scientific theory? - Answers-A hypothesis is an explanation
that may or may not have undergone scientific testing,
while a theory is a hypothesis that has undergone
numerous tests over many years and has accumulated a
large body of evidence in support of the explanation.
What are the six qualities of life? Be able to describe each
quality and not just recognize them. - Answers-1. All living
things have cells - Cell is the smallest unit of life. Cell
contains all the material that are necessary for life to exist.
Some organisms are unicellular (only one cell) like
bacteria, multicellular (many cells) like human. Human
cells have different function like for nerves or skin.
2. Living things can sense and response to change -
Living things response to a stimuli. A stimuli could include
smells (good or bad), taste, sound, heat (touching a hot
stove), light or darkness, or gravity.
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- Homeostasis: When an organism responds to changes in
order to keep its internal environment the same.
3. Living things reproduce - Living things must reproduce
to ensure that their species survives.
4. Living things have DNA - Living things have DNA
because it controls all the characteristics and activities of
an organism.
5. Living things use energy - Organisms takes in energy,
converts it to useful forms, and expels energy.
6. Living things grow and develop - Development: Living
things change and mature as they grow old over time.
Organisms pass through different stages as they grow.
- Single celled organisms: Grow larger.
- Multi-celled organisms: Grow in number of cells.
- Metamorphosis: Is when organisms have a complete
change of body shape. Ex: Capterpillar -> Butterfly or
Tadpole -> Frog.